Fingal Dublin has a long history of intensive agriculture and much of the evidence of early settlement takes the form of scatters of stone tools which are revealed by ploughing.
The traces of the earliest people are also to be found in earthworks such as ring barrows, cairns and hillforts. Examples of early archaeological sites in the county are the portal tomb, also known as Aideen's Grave, located on the Hill of Howth and the passage grave sites at Bremore while evidence of the Early Christian period is to be found in the round towers of Swords and Lusk.
The majority of above ground archaeological remains in Fingal Dublin date from the medieval period and include structures such as tower houses, mottes and church sites. There are also a number of industrial archaeological sites in Fingal Dublin such as Skerries Windmill complex.